VSWR measurement device

1. A VSWR measurement device for an OFDM signal, in particular a CDMA signal, comprising: a) a radio frequency switch, b) a unit for converting a CDMA signal from an RF switch into the digital base band, c) means for extracting a pilot signal from the CDMA signal found on a synchronization channel (SCH) and for outputting a forward power and a reverse power of the pilot signal, wherein said means for extracting employs an SCH code or a common pilot channel (CPICH) code, and wherein said SCH code or said CPICH code relate to said CDMA signal, d) a clock/timing unit and a code generator associated with said extraction means, wherein said code generator provides said SCH code or said CPICH code, wherein said clock/timing unit provides timing signals for said code generator needed to generate the SCH code or the CPICH code with the appropriate timing, e) a controller, and f) means for measuring the signal strength of the pilot signal.

2. The VSWR measurement device according to claim 1 , wherein the extraction means is a correlator or a demodulator.

3. The VSWR measurement device according to claim 1 , wherein the code generator generates SCH codes or CPICH codes according to the UMTS standard.

4. The VSWR measurement device according to claim 1 , wherein the timing unit generates timing signals for the code generator.

5. The VSWR measurement device according to claim 1 , wherein the timing unit comprises a PLL using a VCXO and a FPGA.

6. An antenna network, comprising a VSWR measurement device for an OFDM signal, the VSWR measurement device comprising: a) a radio frequency switch, b) a unit for converting a CDMA signal from an RF switch into the digital base band, c) means for extracting a pilot signal from the CDMA signal found on a synchronization channel (SCH) and for outputting a forward power and a reverse power of the pilot signal, wherein said means for extracting employs an SCH code or a common pilot channel (CPICH) code, and wherein said SCH code or said CPICH code relate to said CDMA signal, d) a clock/timing unit and a code generator associated with said extraction means, wherein said code generator provides said SCH code or said CPICH code, wherein said clock/timing unit provides timing signals for said code generator needed to generate the SCH code or the CPICH code with the appropriate timing, e) a controller, and f) means for measuring the signal strength of the pilot signal.

7. A base station, comprising a VSWR measurement device for an OFDM signal, the VSWR measurement device comprising: a) a radio frequency switch, b) a unit for converting a CDMA signal from an RF switch into the digital base band, c) means for extracting a pilot signal from the CDMA signal found on a synchronization channel (SCH) and for outputting a forward power and a reverse power of the pilot signal, wherein said means for extracting employs an SCH code or a common pilot channel (CPICH) code, and wherein said SCH code or said CPICH code relate to said CDMA signal, d) a clock/timing unit and a code generator associated with said extraction means, wherein said code generator provides said SCH code or said CPICH code, wherein said clock/timing unit provides timing signals for said code generator needed to generate the SCH code or the CPICH code with the appropriate timing, e) a controller, and f) means for measuring the signal strength of the pilot signal.

8. The base station according to claim 7 , further comprising a clock with signals transferable to a transmit chain and to the timing unit.